Device for visually feeding measured quantities of liquid.



PATENTED PEB. 26, 1907.

C. B. HODGES.

DEVICE EUR VISUALLY FEBDING MBASURED QUANTITIES 0F LIQUID.

1\.1 PLI(M.TI0Ny FILED DB0.9.1905.

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PATENTED FEB. v26, 1907.

l. B. HoDGBs. I DEVICE POR VISUALLY. PB BDING MBASURED QUANTITIBS or LIQUID. l

PPLIOATION FILED DEO. 9, 1905.

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CLARENCE B HODGES- l I MM BY ATT'V.

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IINITED STATES PATENT OFFICE.

LUBRICATOR COMPANY, OF DETR MICHIGAN.

OIT, MICHIGAN, A CORPORATION OF DEVICE FOR VISUALLY FEEDINGMEASUREDQUANTITIES OF LIQUID.

Specification of Letters Patent.

Patented Feb. 26, 1907.

Application filed December 9, 1905. Serial No. 291,021.

To all whom it may concern.-

Be it known that I, CLARENCE B. HoDGns, a citizen of the United Statesof America, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new useful Improvements in Devices forVisually Feeding Measured Quantities of Liquid, of

which vthe following is a specification, reference being had therein tothe accompanying drawings.

The invention relates to the construction of a device for visuallyfeeding measured quantities of liquids, and particularly to such adevice for sight-feeding oil.

It consists in a visual or sight-feed chamber, to which charges ofliquid are fed to fill a portion or section of such chamber where it maybe seen and where it is held in sight long enough to determine the sizeof the charge or feed and is then moved away to the point to belubricated.

Sight-feeds heretofore have consisted of a visual chamber through whichdrops of oil, either ascending or descending, were fed free from thesides of the chamber, either dropping through an air-space in thechamber or ascending through water. In these devices the operator mustwatch the drops 'as they are fed through the space, which requires closeinspection.

With my device the sight-feed chamber, preferably having transparentwall or walls, is partially lilled or a section is filled for eachcharge, so that the liquid being in contact with the transparent wall isreadily observable, and the size of the feed and the rapidity of feedcan easily and quickly be observed. With the preferred forms this can beseen at quite a distance. For instance, if my device is used forlubricating an automobile it may be placed on the dashboard, and thechauffeur sitting on the seat can readily observe all the feedsinstantly without getting down and peering into the glasses at shortrange.

While I have shown my device for feeding oil as a sight-feed lubricator,it is obvious that it may be used for feeding other liquids for otherpurposes.

The sp ecilic form of pump' and valve mechanism herein shown is no partof my invention, but is illustrated to show one of the prealmost alwaysferred forms of device to may be applied.

In the drawings, Figure l is a transverse section through a lubricatorembodying my invention. Ifig. 2 is a longitudinal section through thereservoir, showing the pumps partly in section. Fig. 3 is a sectionsimilar to Fig. l of a modified structure. Fig. 4 is a section on line 44, Fig. 3 and Fig. 5 is a top plan view of the pump, showing connectionsto same.

A represents an oil-reservoir, and in this embodiment of my invention Ihave shown the pumps (two being here shown) arranged therein, each pumpconsisting of the cylinder B and piston B. The valve-casing C below thepump, preferably formed integral with the cylinder, has the rotary valveC therein. This valve is a shaft which is suitably journaled in thecasing and has the worm-wheel D, driven by the worm E, driven from anysuitable source of power. On the valveshaft are cams F. having camways,in which which my invention roller-wrists a on the connecting-rods tengage, these connecting-rods connecting to the cross-head G, throughwhich the pistons pass. Each piston preferabl f has the nut c adjustablyscrewed thereon above the crosshead and the pin or shoulder d below thecross-head, the cross-head striking these two as it moves up and downand actuating the pistons, the distance between the nut and pindetermining the throw of the piston, and hence the amount of the feed orcharge.

The valve-shaft is provided with the two ports (shown as segmentalnotches) e h for each pump, these ports being in different planeslongitudinally of the shaft. One port is adapted to first connect theinlet or suction pipe H with the cylinder and then to connect thecylinder with the conduit I, leading to the sight-feed. The other portis adapted to connect the cylinder first with the returnconduit J fromthe sight-feed and then to connect the cylinder with thedischargeconduit J to the point to be lubricated. Thus the pump takesoil from the reservoir, delivers it to the sight-feed, then takes itfrom the sight-feed, and delivers it to the point to be lubricated, theoil being fed in regulated charges or feeds, depending upon IOO mined bythe travel of the piston,) and is held the amount of throw or travel ofthe piston l of each pump.

The sight-feed which is the subject of my invention may be cf varioustypes or forms. I have shown it as comprising a tubular glass in bothmodifications 5 but it is to be understood that the bulls-eye or otherferm of sight-feed may be employed without de parting from the spirit ofmy invention. In the construction snown in Irig. l the conduit I leadsinto the top casing K, at the bottom of which is the tubular glass I',which at the bottom engages the bottom casing or bracket L, to whichconnects the returneconduit gli. The glass is held in position by theannular nut fi. The top of the casing K is provided with theicap M,having air-inlet ports k. In this construction of device I construct thecamways a, so that the pistons will have a slightly-greater travel forthe strode that takes the charge from the sight-feed than that whichtakes the oil from the reservoir and delivers it to the sight-feed.

The operation is as follows: A pump withdraws oil from the reservoir,delivers it into the conduit I, whence it is fed te the top casing K,and according to the travel of the piston at each reciprocaticn ameasured quantity is dropped into the top of the sight-feed lass. Trienext reciprocation of the pump will draw it down into the glass, andwith it air entering the ports lc will also be drawn in, so that thecharges or feeds will be separated by air-spaces m, as shown in Fig. l.

It will be observed that a section of the passage-way through the glasstube I is entirely lilled by each charge, and it has been found inpractice that these separated charges will be drawn through thesight-feed, as shown in Fig. l, being held to view for quite a periodand plainly visible even at a distance of several feet.

In the construction shown in Fig. 3 instead ef taking the charge in atthe top and drawing it down the whole length the charge is fed into thebottom, 'Elling the bottom section of the sight-feed chamber held therebetween feeds, then drawn away before another is fed in. In thisconstruction the pipe I leads into a nozzle 0 within the pipe O andprojects to or into the lower end of the sightfeed chamber, (shown asthe tubular glass type,) the same as I", with an air-ported cap M. Thenozzle o is smaller than the bore of the pipe O, having a passage-way raround it. The eharge of oil is fed in by the pump and fills a portionof the lower part of the oil- Chamber, as shown at s, (its size beingdeterthere until it is drawn down into the pipe O by the nextreciprecation of the pump, when the valve connects 1t with thereturn-pipe from the sight-feed chamber. The differential action of thepump is not required for this construction. l

eeaeie INhat I claim as my invention isl. In a device for visiblyfeeding liquid in measured quantities, the combination of a sight-feedfeature having a chamber and means for filling a section of the chamberfor each feed.

2. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed feature having an observationchamber, meansfor filling a section of the chamber for each feed and for moving thecharge away from the observation-point.

3. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber and means for successively fillingsections of the chamber for each feed and for feeding the chargesseparatelyl therefrom.

4. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for feeding suceessive oilcharges therein and for holding the charge in view between feeds.

5. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for successively filling asection thereof and for holding the charge in view between feeds.

6. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for feeding' successiveseparated charges therein, each charge filling a section of suchchamber.

7. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for feeding oil chargestherein, each filling a section of the chamber and for separating thecharges by air-spaces.

8. In a device for visibly feeding liquid in measured quantities, thecombination 0f a sight-feed chamber and means for feeding thereinseparated see-.tions of oil and air.

9. In a device for visibly feeding liquid in measured quantities, the.combination ofvan ob servation-chamber, means for intermittentiyfilling a section of the chamber and holding the charge in view betweenoperations, and then withdrawing such charge.

1G. In a device for visibly feeding liquid in measured quantities, asight-feed chamber open to the atmosphere and means for intermittentlyfilling a section of the chamber for each feed.

11. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for intermittently filling asection of the chamber and for withdrawing the fed charge therefrom.

12. In a device for visibly feeding liquid in measured quantities, thecombination of a sight-feed chamber, means for delivering separatedcharges therein, each filling a section of the chamber and forwithdrawing the charges therefrom.

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13. In a device for visibly feeding liquid in from said chambei1 andmeans for diilerenmeasured quantities, the combination of atiallyactuating said pump,forthepurposede sight-feed chamber open to theair and differscribed. entially-acting pumps to feed charges into Intestimony whereof I aHX my signature 5 and Withdraw the same from thechamber, in presence of tWo Witnesses.

or the pur ose described.

14. In a evice for visibly feeding liquid in CLARENCE B' HODGES measuredquantities, the combination of a Witnesses: sight-feed chamber open tothe air, a single AMELIA WILLIAMS,

1o pump delivering oil to and withdrawing it JAMES P. BARRY.

